Exhibit 1:

In this exhibit we're looking at the concentric hierarchy from the tetrahedron out to the rhombic dodecahedron. The shapes are all 2.3.4-fold symmetric -- no member of the 5-fold symmetric family in this exhibit. The status bar will show the volumes of these shapes when you select an isolated view. The cumulative view column gives you a way to superimpose the systems atop one another.

Remember that these shapes may also be further subdivided into two kinds of module, the A and the B modules.

The last control in each column adds a unit-radius sphere to the picture.